var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
// require('./util/JWT')

var RightsRouter = require('./routes/RightsRouter')
var RolesRouter = require('./routes/RolesRouter')
var UserRouter = require('./routes/UserRouter')
var TagRouter = require('./routes/TagRouter')
var ClassRouter = require('./routes/ClassRouter')
var StudentRouter = require('./routes/StudentRouter')
var CompanyRouter = require('./routes/CompanyRouter')
var CompanyStudentRouter = require('./routes/CompanyStudentRouter');
const JWT = require('./util/JWT');
var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
//后端路由拦截
app.use((req, res, next) => {
  if (req.url === "/admin/users/login") {
    
    next()
    return;
  }
  const token = req.headers["authorization"]?.split(" ")[1]
  console.log(token);
  if (token) {
    var payload = JWT.verify(token)
    if (payload) {
      const newToken = JWT.generate({
        _id: payload._id,
        username: payload.username
      }, "5d")

      res.header("Authorization", newToken)
      next()
    } else {
      res.status(401).send({ errorCode: -1, errorInfo: "token过期" })
    }
  }else{
    res.status(401).send({ errorCode: -2, errorInfo: "未授权" })
  }
})
app.use(RightsRouter)
app.use(RolesRouter)
app.use(UserRouter)
app.use(TagRouter)
app.use(ClassRouter)
app.use(StudentRouter)
app.use(CompanyRouter)
app.use(CompanyStudentRouter)
// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
